Pith Number

pith:FVBRCJEV

pith:2017:FVBRCJEV47GXSL4YGEWMORITE4

not attested not anchored not stored refs pending

Multiple Context-Free Tree Grammars: Lexicalization and Characterization

Andreas Maletti, Joost Engelfriet, Sebastian Maneth

arxiv:1707.03457 v1 · 2017-07-11 · cs.FL · cs.CL

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FVBRCJEV47GXSL4YGEWMORITE4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:40:25.972745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d43112495e7cd792f98312cc74513272245771ed5909545c002826195efc96c

Aliases

arxiv: 1707.03457 · arxiv_version: 1707.03457v1 · doi: 10.48550/arxiv.1707.03457 · pith_short_12: FVBRCJEV47GX · pith_short_16: FVBRCJEV47GXSL4Y · pith_short_8: FVBRCJEV

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/FVBRCJEV47GXSL4YGEWMORITE4 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 2d43112495e7cd792f98312cc74513272245771ed5909545c002826195efc96c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8955f5c5821113f3afcc473ce1b589705507572182957808d9e15bcb346e5f8",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2017-07-11T20:48:57Z",
    "title_canon_sha256": "ac606d575332575ed95607f49bccc61cd2f11659090943958d95d6823b0a9e8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.03457",
    "kind": "arxiv",
    "version": 1
  }
}